430: A Yawn Across Time

Would it be harder to swim in lava or water? Why do I have one long white hair that grows from my face cheek? What would the stars look like if I were moving faster than light, like the Enterprise in Star Trek? What role do John and Hank play with Partners In Health? How does gravity impact digestion? What is the longest length of time a yawn has been spread? Why is everything so hard? Can you quell my fears about AI? …Hank and John Green have answers!

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